From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: parallel make bug Date: Wed, 27 Jun 2007 20:57:55 +0300 Message-ID: References: <200706262110.l5QLA5gf029091@oogie-boogie.ics.uci.edu> <200706270529.l5R5TuRb023636@oogie-boogie.ics.uci.edu> Reply-To: Eli Zaretskii NNTP-Posting-Host: lo.gmane.org X-Trace: sea.gmane.org 1182967087 20335 80.91.229.12 (27 Jun 2007 17:58:07 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Wed, 27 Jun 2007 17:58:07 +0000 (UTC) Cc: emacs-devel@gnu.org To: Dan Nicolaescu Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Jun 27 19:58:05 2007 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1I3bmF-00086a-P0 for ged-emacs-devel@m.gmane.org; Wed, 27 Jun 2007 19:58:04 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1I3bmF-0006mI-EM for ged-emacs-devel@m.gmane.org; Wed, 27 Jun 2007 13:58:03 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1I3bmC-0006m0-Gg for emacs-devel@gnu.org; Wed, 27 Jun 2007 13:58:00 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1I3bmB-0006kq-1V for emacs-devel@gnu.org; Wed, 27 Jun 2007 13:58:00 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1I3bmA-0006kn-QW for emacs-devel@gnu.org; Wed, 27 Jun 2007 13:57:58 -0400 Original-Received: from romy.inter.net.il ([213.8.233.24]) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1I3bm9-0008Lo-Vd for emacs-devel@gnu.org; Wed, 27 Jun 2007 13:57:58 -0400 Original-Received: from HOME-C4E4A596F7 (IGLD-84-229-245-204.inter.net.il [84.229.245.204]) by romy.inter.net.il (MOS 3.7.3-GA) with ESMTP id IEQ00232 (AUTH halo1); Wed, 27 Jun 2007 20:57:54 +0300 (IDT) In-reply-to: <200706270529.l5R5TuRb023636@oogie-boogie.ics.uci.edu> (message from Dan Nicolaescu on Tue, 26 Jun 2007 22:29:52 -0700) X-detected-kernel: FreeBSD 4.7-5.2 (or MacOS X 10.2-10.4) (2) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:73933 Archived-At: > Cc: emacs-devel@gnu.org > From: Dan Nicolaescu > Date: Tue, 26 Jun 2007 22:29:52 -0700 > > Eli Zaretskii writes: > > > > From: Dan Nicolaescu > > > Date: Tue, 26 Jun 2007 14:10:05 -0700 > > > > > > > > > Doing make -j8 bootstrap on a 2 processor machine: > > > > > > Directories: /home/dann/emacs/Emacs-CVS/emacs/lisp/. /home/dann/emacs/Emacs-CVS/emacs/lisp/./eshell /home/dann/emacs/Emacs-CVS/emacs/lisp/./mail /home/dann/emacs/Emacs-CVS/emacs/lisp/./language /home/dann/emacs/Emacs-CVS/emacs/lisp/./emacs-lisp /home/dann/emacs/Emacs-CVS/emacs/lisp/./calc /home/dann/emacs/Emacs-CVS/emacs/lisp/./gnus /home/dann/emacs/Emacs-CVS/emacs/lisp/./textmodes /home/dann/emacs/Emacs-CVS/emacs/lisp/./net /home/dann/emacs/Emacs-CVS/emacs/lisp/./mh-e /home/dann/emacs/Emacs-CVS/emacs/lisp/./calendar /home/dann/emacs/Emacs-CVS/emacs/lisp/./progmodes /home/dann/emacs/Emacs-CVS/emacs/lisp/./erc /home/dann/emacs/Emacs-CVS/emacs/lisp/./international /home/dann/emacs/Emacs-CVS/emacs/lisp/./emulation /home/dann/emacs/Emacs-CVS/emacs/lisp/./url /home/dann/emacs/Emacs-CVS/emacs/lisp/./play > > > Compiling /home/dann/emacs/Emacs-CVS/emacs/lisp/emacs-lisp/byte-opt.el > > > IO error reading /home/dann/emacs/Emacs-CVS/emacs/lisp/subdirs.el: Input/output error > > > make[2]: *** [autoloads] Error 255 > > > make[2]: *** Waiting for unfinished jobs.... > > > > > > Is there any reason $(lisp)/subdirs.el should start a recursive make > > > instead of just depending on update-subdirs like in the patch below? > > > > Is there a reason for the I/O error? I don't see why it should > > happen; do you? > > For bootstrap, update-subdirs and autoloads can execute in > parallel. autoloads will run another make to do update-subdirs. > If "autoloads" creates subdirs.el first while "update-subdirs" is not > running, it is possible that later "update-subdirs" deletes subdirs.el > while "autoloads" is using it. Am I off base here? If you think the conflict is between "autoloads" and "update-subdirs", then the usual solution is to serialize them: make "update-subdirs" touch some file, and make "autoloads" depend on that file.